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Explain Disadvantage of Optimal Page Replacement Algorithm
Optimal page replacement algorithm cannot be implemented in the general purpose operating system as it is impossible to calculate reliably how long it will be before a page is going to be used.
creating a control flow question for atm system
Arithmetic-logic section in computer system: The arithmetic-logic section performs arithmetic operations, such subtraction, addition, multiplication, and division. Throug
Differentiate between pre-emptive and non-pre-emptive scheduling. Pre-emptive scheduling : in its approach, center processing unit can be taken away from a process if there is a
Fingerprint- Biometric computer security systems First of all, fingerprint is the most commonly used biometric technology, because every person has unique fingerprints and the
The features are needed to implement top down parsing are? Ans. Source string marker, Prediction making mechanism and also matching and backtracking mechanism features are need
Define Time Sharing. Time Sharing: Sharing of a computing resource among various users by means of multiprogramming and multi-tasking is termed as timesharing. By permittin
Explain a binary semaphore with the help of an example? An abstract data type (ADT) is a semaphore which defines a nonnegative integer variable that apart from initialization i
What is meant by branch instruction? A branch instruction is an instruction which changes the contents of the PC with the branch target address. This address is usually get by
How does the Dialog handle user requests? when an action is performed ,the system triggers the PROCESS AFTER INPUT event. The data passed contains field screen data data enter
Q. Explain Keyboard Input and Video output ? A Keystroke read from keyboard is termed as a console input and a character displayed on the video screen is known as a console out
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